Organisation for Economic Co-operation and Development & ProQuest (Firm). (2012). Denmark 2011. OECD.
Chicago-čujuhus (17. p.)Organisation for Economic Co-operation and Development juo ProQuest (Firm). Denmark 2011. Paris: OECD, 2012.
MLA-čujuhus (9. p.)Organisation for Economic Co-operation and Development juo ProQuest (Firm). Denmark 2011. OECD, 2012.
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